<template>
  <div class="users">
    <!-- 头部导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片内容区 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList()">
            <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
         <el-button type="primary" @click="dialogVisible = true">添加用户</el-button> 
        </el-col>
      </el-row>
      <!-- 表格区域 -->
    <el-table :data="userList" border stripe width="100%">
      <el-table-column type="index" label="#"></el-table-column>
      <el-table-column prop="username" label="姓名" ></el-table-column>
      <el-table-column prop="email" label="邮箱"></el-table-column>
      <el-table-column prop="create_time" label="电话" ></el-table-column>
      <el-table-column prop="role_name" label="角色" ></el-table-column>
      <el-table-column prop="mg_state" label="状态" >
        <template v-slot="scope">  
          <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="180px">
        <template v-slot="scope">  
          <!-- 修改按钮 -->
          <el-button type="primary" icon="el-icon-edit" size="mini" @click="editClick(scope.row.id)"></el-button>
          <!-- 删除按钮 -->
          <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
          <!-- 分配角色 -->
          <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
            <el-button type="warning" icon="el-icon-star-off" size="mini" @click="setRole(scope.row)"></el-button>
          </el-tooltip>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页区域 -->
     <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 3, 4]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
    </el-card>
    <!-- 弹出对话框区域 -->
    <el-dialog
      title="添加用户"
      :visible.sync="dialogVisible"
      width="30%"
      @close="addDialogClose()">
      <!-- 主体 -->
      <el-form :model="addForm" label-width="70px" :rules="addFormRule" ref="addFormRef">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email" type="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部 -->
      <template #footer>
        <span class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser()">确 定</el-button>
      </span>
      </template>
   </el-dialog>
   <!-- 修改用户信息区域 -->
   <el-dialog
      title="提示"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose()">
     <el-form ref="editFormRef" :rules="editFormRule" :model="editForm" label-width="70px">
       <el-form-item label="用户名">
         <el-input v-model="editForm.username" disabled></el-input>
       </el-form-item>
       <el-form-item label="邮箱" prop="email">
         <el-input v-model="editForm.email"></el-input>
       </el-form-item>
       <el-form-item label="手机" prop="mobile">
         <el-input v-model="editForm.mobile"></el-input>
       </el-form-item>
     </el-form>  
      <template #footer>
        <span class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo()">确 定</el-button>
        </span>
      </template>
    </el-dialog>
    <!-- 分配用户对话框 -->
    <el-dialog
    title="分配权限"
    :visible.sync="setRoleDialogVisible"
    width="50%"
    @close="setRoleClosed()">
     <p>当前的用户：{{userInfo.username}}</p>
     <p>当前的角色：{{userInfo.role_name}}</p>
     <p>分配新角色：
       <el-select v-model="selectedRoleId" placeholder="请选择">
         <el-option
          v-for="item in rolesList"
          :key="item.id"
          :label="item.roleName"
          :value="item.id">
         </el-option>
       </el-select>
     </p>
    <template #footer>
      <span class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo()">确 定</el-button>
      </span>
    </template>
   </el-dialog>
  </div>  
</template>

<script>
export default {
  name: 'Users',
  data() {
    // 验证邮箱规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9]+[_|-|.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|-|.]?)*[a-zA-Z0-9]+.[a-zA-Z]{2,3}$/gi
      
      if (regEmail.test(value)) {
        return cb()
      } 
      cb(new Error('请输入合法邮箱'))
    }
    // 验证手机号正则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^0?(13[0-9]|14[5-9]|15[012356789]|166|17[0-8]|18[0-9]|19[8-9])[0-9]{8}$/
      
      if (regMobile.test(value)) {
        return cb()
      } 
      cb(new Error('请输入合法手机号'))
    
    } 

    return {
     queryInfo: {
       query: '',
      //  当前的页数
       pagenum: 1,
      //  每一页显示的条数
       pagesize: 2
     },
     userList: [],
     total: 0,
    //  控制对话框显示与隐藏
     dialogVisible: false,
    //  添加的用户信息
     addForm: {
       username: '',
       password: '',
       email: '',
       mobile: ''
     },
     addFormRule: {
       username: [
         { required: true, message: '请输入用户名', trigger: 'blur' },
         { min: 3, max: 9, message: '长度在 3 到 9 个字符', trigger: 'blur' }
       ],
       password: [
         { required: true, message: '请输入密码', trigger: 'blur' },
         { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
       ],
       email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validateor: checkEmail, trigger: 'blur'}
       ],
       mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validateor: checkMobile, trigger: 'blur'}
       ]
     },
    //  修改用户弹出框
     editDialogVisible: false,
    //  添加用户
     editForm: {},
     
     editFormRule: {
       email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validateor: checkEmail, trigger: 'blur'}
       ],
       mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validateor: checkMobile, trigger: 'blur'}
       ]
     },
    //  分配用户显示
    setRoleDialogVisible: false,
    // 保存用户信息
    userInfo: {},
    // 保存对话框用户信息的列表
    rolesList: [],
    // 已选中的角色id
    selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if(res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userList = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 监听pagesize改变
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听pagenum改变
    handleCurrentChange(newNum) {
      // console.log(newNum)
      this.queryInfo.pagenum = newNum
      this.getUserList()
    },
    async userStateChange(userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(
      `users/${userinfo.id}/state/$
      {userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 关闭弹出框显示
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    // 添加用户点击按扭确定
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data:res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败!')
        }else {
          this.$message.success('添加用户成功!')
        }
        
        // 关闭弹出框
        this.dialogVisible = false
        // 获取用户列表
        this.getUserList()
      })
    },
    // 点击修改按钮
    async editClick(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
      // console.log(this.editForm)
      this.editDialogVisible = true
    },
    // 修改表单重置操作
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改表单确定按钮
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if(!valid) return
        // 数据请求
        const { data:res } = await this.$http.put('users/' + this.editForm.id,{
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if(res.meta.status !== 200) {
          return this.$message.error('更新用户数据失败！')
        }
        //  关闭对话框
        this.editDialogVisible = false

        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户数据成功')
      })
    },
    // 点击删除按钮
    async removeUserById(id) {
       const confirmResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示', 
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
       
      ).catch(err => err)
      
      if(confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
       const {data:res} = await this.$http.delete('users/' + id)
       if(res.meta.status !== 200) {
         return this.$message.error('删除用户失败！')
       }
       this.$message.success('删除用户成功！')
       this.getUserList()
    },
    // 展示分配角色对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      
      const {data:res} = await this.$http.get('roles')
      if(res.meta.status !== 200) {
        return this.$message.error('获取权限数据失败!')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击角色对话框确定按钮
    async saveRoleInfo() {
      if(!this.selectedRoleId) {
        return this.$message.error('分配角色不能为空！')
      }
      const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,
      {
        rid: this.selectedRoleId
      }
     )
     if(res.meta.status !== 200) {
       return this.$message.error('更新角色失败！')
     }
     this.$message.success('更新角色成功！')
     this.getUserList()
     this.setRoleDialogVisible = false
    },
    // 分配角色关闭事件
    setRoleClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
} 
</script>

<style scoped>
  .el-breadcrumb {
    margin-bottom: 15px;
    
  }
  .el-card {
    box-shadow: 0 1px 1px rgba(0,0,0, 0.1);
    
  }
  .el-table {
    margin-top: 15px;
    font-size: 12px;
    
  }
  .el-pagination {
    margin-top: 15px;
  }
</style>